August j



Patented Aug. 4, 1925.

UNITED STATES AUGUST 3'. KLONECK, OF NEW YORK, N. Y.

SPARK COIL.

Application filed January 5, 1920. Serial No. 349,593.

T all whom it may concemr Be it known that 1, AUGUST J. KLoNEoK, a citizen of the United States, and a resident of New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Spark Coils, oi? which the following is a specification.

This invention relates to magnet coils wherein the current circuit is closed and opened alternately.

The object of the invention is to produce a coil of this type which isalternately 'con nected to a source 01" electrical current for energization and after which said coil is short circuited for deenergization.

Another object of the invention is to provide a separate interrupting means for spark coils.

A further object of the invention is to provide a coil with an interrupting means and suitable circuits permitting energization and short circuiting of the coils and interrupting means alternately.-

A still further object of the invention is to employ suitable circuits and operating elements in connection with the electromagnetic interrupter and the spark coils.

It is well known that the present type of spark coils deliver a crashing periodically varying spark at the secondary terminal, preventing the use of spark coils where an even unvarying spark is required. Upon investigation and experiments the present mode of spark coil operation has been evolved.

In the accompanying drawings forming a part of this specification and in which like characters of reference denote similar parts; Figure 1 shows a diagram of elec' trical circuits and elements including a spark coil with a separate electromagnetic interrupting means cooperating with one another for the generation of a high tension secondary current for the operation of spark plugs of an explosion engine and for operating a radio signal system simultaneously, a combination which may be used in aeroplanes, the discharge of the spark plugs acting like a rotary spark gap for the radio signals. Figure 2 shows a diagram of electrical circuits including a spark coil operating its'own interrupter which latter has one contact for completing a current energizing circuit and another contact for short circuiting its primary coil alternately. Figure 3 shows a diagram of electrical circuits, comprising a spark coil and a separate interrupter in shunt circuits to each other and a contact for short circuiting the same. Figure 4i shows a diagram of a spark coil and a motor operated interrupter tor alternately short circuiting one of the same.

In Figure l, the numeral 1 denotes a battery which may be a storage battery, 2. is a dynamo and 3 are switches for selectively utilizing either battery 1 or dynamo 2. Each of the-terminal wires goes to one of two opposite contacts of the interrupting armature l. The latter is operated by the electromagnets 5 which are connected between the armature l and one terminal wire for instance that marked 6. Between the armature 4 and the other terminal wire 7 are two primary coils 8 and 8" of a spark coil 9 connected in shunt to each other. The use of two primary coils which have slightly different number of-turns will react upon each other and thus prevent the building up of a sharp peak wave secondary current. A secondary coil 9 of the spark coil 9 is at one end connected with an oscillation transformer 10 and grounded by 19' to an engine 19" which latter comprises the spark plugs 11, 12, 13 and let. The other terminal of the secondary coil 9 leads through a distributing contact of the engine timing system to the spark plugs 11 to i l and ground 19, and in multiple to contact 15 through a transmitting signal instrument, such as a telegraph key 16 to the other terminal of the oscillation transformer 10. A secondary coil 17 0t saidoscillation transformer is connected with its terminals to a radio antenna 18 and ground part 19 or to a coil antenna 20 for radio signaling. It will be noted that the spark plugs have the ot fice of producing an audible note similarly to rotary spark gaps in radio telegraphy and that a discharge of current between the spark plugs will vary the amount of current for signaling and thus produce a signal of an audible subfrequency, a combination which will be employed by aeroplanes or motor boats, if desired. It will be noted that when armature 4. is fully attracted by its electromagnets 5, the latter will be short circuited by a contact at the attracted position of the armature permitting full current to flow through primary coils 8 and 8 of the spark coils; while the armature in its repelled position will short circuit the primary coils by contact 22 of the spark coils, permitting full current to flow through the armature and the electromagnet coils 5.

In Figure 2, one terminal 6 of the sources of electrical current 1 and 2 is connected with the primary coil 8 of a spark coil 9 and to a short circuiting contact 21. The latter is arranged at the attracted position of an armature l. An energizing contact 22 for the spark coil is arranged at the repelled position of armature 41: which latter is connected with the other end of prin'iary coil 8, while contact is connected with terminal 7 of the sources of current 1 and 2. Between contact 22 and armature is arranged a spark reducing condenser A condenser 24 is further arranged in shunt to the primary coil 8; one purpose of which is to vary the speed or frequency of charging the primary coil 8 by the electrical current. A secondary coil 9 of this spark coil is in connection with a distributor of an engine causing an energization of the spark plugs 11, 12 and 18 thereof periodically desired. It will be obvious that the secondary current of the spark coil will as well operate X-ray, or medical apparatus or experimental and numerous other apparatus the illustration of which are well known and considered superflous to show them in connection with this invention.

In Figure 2), the electromagnets 5 of an interrupter and the primary coil 8 of a spark coil are connected in shunt to each other; and at one end to one terminal 6 of the source of current I], further to the short circuiting contact 21. The other ends of the interrupter coils 5 and the primary coil 8 are connected with the armature 4. At the repelled position of armature 41- is the energizing contact 22. It will be noted that coils 5 or 9 may be omitted if desired.

In Figure 4, the interrupter consists of a motor operated rotating contact disk 29 and stationary contacts 31 and 32 for the purpose of producing interruptions of the spark coils at radio frequencies. Two pri mary coils 8' and 8" of the spark coil 9 are arranged in shunt to each other and at one end connected with the battery 1. and dynamo 2 which may comprise a charging dynamo 2 for the battery 1. The other ends of said primary 8 and 8" are connected with an open contact 16 of a telegraph key 16. In shunt to said primary coils is further a suitable impedance which may be av resist ance 25. The latter is connected at the free end to a normally closed contact 16 of said telegraph key 16 preventing an inter rupt-ion of the motor circuit. The key 16 is connected with a switch point 26 of a selecting switch 26. Another switch point 26 thereof is connected with a telephone transmitter 27 and further in contact with the primary coils. The switch lever is connected to one terminal of motor and. in multiple thereof to a contact brush 29 for the rotating interrupter 29. The other terminal side of motor 28 is connected with terminal 7 of the battery 1 and also through a switch 30 to a contact 31 in cooperation with the motor dri en armature 29 which latter serve for short circuiting the motor at a certain frequency. In alternate operation with contact 31 on armature 29 is a contact 32. The latter connected with terminal 6 of battery 1 adapted for short circuiting the primary coils 8 and 8 of the spark coil. For this purpose the rotating armature 29 of this interrupter has a large number of metallic segments or projecting teeth 33 which alternately connect with contacts 31 and 32. short circuiting motor 28 and the spark coil 9 alternately.

Said interrupter comprising the armature 29 and contacts 81-32 is arranged in a receptacle 3% which latter is filled with oil or any suitable spark reducing gases or liquids.

The purpose of arranging the motor in series with the spark coil and short circuiting the same alternately with the spark coil is to permit utilization of increased power from said spark coil, since with a 1 to 2 kilowatt set the motor would consume to horsepower if operating in a liquid at high speeds.

The starting of motor 28 is accomplished by opening the short circuiting switch 30 and circuit of the motor. The secondary coil 9 of the spark coil 9 operates a radio oscillation circuit, which latter includes spark gaps 35, 85 and coils l0 and 1t) oi an oscillation transformer 10 and condensers 36, 36". Said oscillation trans former 10 is shown energizing radio antennae 18, 20. Other suitable elements may be included in any circuits if desired.

It will be observed that the motor 28 shown in Figure 4 and the electromagnets 5 shown in Figures 1. and 3 areimpedances connected in series or as Figure 3, in multiple to the primary of the spark coils. Since the operation consists preferably in short circuiting the primary coils and the motor or electromagnets. the circuit is thus not interrupted but only the flow of energy through the apparatus alternately. For these reasons there will be not much sparking at the cont-act or any storing of reluc tant energy in the coils as in the open circuit interrupting system.

On the other hand, the arrangement: is such that the source of current will not be short circuited by the contacts but successively, the full current from the source is permitted to energize the primary coils and the interrupter alternately. irlthough the short circuiting of the motor 28, or the electromagnets 5 and. the resistance 25 is circuit desirable, the same are not essential for the operation of the device; the importance rests with the short circuiting of the spark coil for occasioning a clear operation of the same. I

Having now fully described my invention, I claim as new and desire to secure by Letters Patent the following 1. A transformer comprising energizing coils and a circuit interrupter, the latter including armature and contacts adapted for occasioning and energization and short circuiting of said energizing coils of said transformer alternately.

2. The combination, of a transformer including energizing coils and a circuit interrupter therefor, the latter includes armature and contacts and circuits arranged in operative relation with said coils for completing a circuit for an energization and for a short circuiting of said energizing coils alternately.

3. The combination of a spark coil comprising primary coils, a circuit interrupter therefor including armature and contacts, and circuits for connecting the same, said armature and contacts being arranged for establishing energizing circuits for said primary coils and said interrupter and for short circuiting said primary coils and said interrupter alternately and inversely with respect to one another.

4:. The combination with a transformer having primary coils, of an electrically op-- erated interrupter therefor, the latter having armature and contacts for short circuiting said primary coils and said electrical interrupter alternately and inversely with respect to one another.

The combination with a spark coil having primary coils, of a circuit interrupting means therefor including armature and con tacts, the latter being arranged for permitting an energization and for short circuiting said primary coils alternately, said armature being rotatably arranged.

6. The combination with a spark coil, of operating elements therefor including circuits and circuit interrupting means and a resistance, said interrupting means including armature and contacts arranged in circuit for permitting an energization and for short circuiting said spark coil alternately, said resistance being arranged to be in circuit inversely with said spark coil, said interrupting means being rotatably operated.

7. The combination with a spark coil having primary coils, of circuits embracing a common primary circuit and elements embracing interrupting means, the latter having armature and contacts, and two separate secondary utilizing circuits from said spark coil, a source of electrical current and operating means, said two utilizing circuits being alternately operated in a manner whereby one of said circuits is dominating the operative energization of the other of said circuits, said primary coils being ar ranged in circuit with said contacts of said interruptng means for short circuiting said primary coils at a high frequency.

8. The combination of a spark coil having two primary coils connected in multiple with one another and a secondary, said primary coils having different number of turns,

means, including a movable armature and contacts in operative relation therewith for establishing circuits for short circuiting and for an energization of said primary coils alternately adapted for neutralizing static currents within said spark coil.

9. The combination with a spark coil including primary coils, of electrical circuits and operating elements including an interrupter and an impedance, said interrupter having contacts for permitting energization of said primary coils and a short circuiting of the same alternately at a desired frequency, said impedance being arranged to be in circuit with the contacts of said interrupter for energization inversely with respect to said primary coils.

10. The combination with a spark coil having primary coils, of electrical circuits including an impedance, an interrupter having contacts and an armature, a source of electrical current, an energizing circuit of said primary coils including said source of electrical current, said interrupter and certain contacts of the same, and a circuit for short circuiting said primary coils by certain other contacts of said interrupter, said interrupter operating each of said mentioned circuits alternately, said impedance being connected in series with said source of electrical current and said interrupter, said contacts serving for operating said primary coils and said impedance at a certain frequency and inversely with respect to one another.

11. The combination with a spark coil having a primary and a secondary, of electrical circuits including an impedance, an interrupter including an armature and contacts, a source of electrical current, said impedance being connected in series with said source of electrical current and said interrupter and in multiple to said primary, said interrupter being energized by said source of electrical current and having its armature and contacts connected in series with said primary, said contacts being arranged for short circuiting the interrupter itself and said primary of said spark coil alternately and means for substituting said impedance in series with the circuit of said source of electrical current in place of said primary of said spark coil.

12. The combination in a spark coil apparatus, of two primary coils, a contact mak- &

ing means in connection with said primary coils, said contact making means having contacts arranged in a manner whereby said primary coils are alternately energizable and short circuited and by the last mentioned manner deenergized.

13. The combination, of a spark coil having two primary coils, said primary coils having a different number of turns and being connected in multiple to one another, and an electrically operated means for alternately energizing and deenergizing said primary coils and the operating means and inversely with respect to one another.

14. The combination, of a spark coil ineluding a primary, an interrupter having armature and contacts, the latter being in connection with said primary whereby said primary will be energized and decnergized alternately, and an impedance the latter being connected in multiple with said primary and in series with said interrupter.

In testimony whereof I hereunto subscribe my name in the presence of two wit nesses this 7th day of June, 1917.

AUGUST J. KLONEGK. lVitnesses MARTIN POPICLAUER, DANIEL NICK. 

